I had a letter___(send) in the post office,I was too busy答案是senthave 这个词后面不是加动词原形吗?和let,make一样……还有种又是加动词ing的相当于Keep现在有点晕了,分不清怎么办?

I am Chinese,but I can write a letter___ I had a letter___(send) in the post office,I was too busy答案是senthave 这个词后面不是加动词原形吗?和let,make一样……还有种又是加动词ing的相当于Keep现在有点晕了,分不清怎么办? 一道高中英语问题 Would you please remain for a while?I have a letter___. A.typed B.to be typed 已知 I still haven't got the letter he sent to me a week ago.I wonder if the letter___ wrongly delivered[A] might be [B] might have been[C] should be [D] should have beenAnd reason,please.Thanks. I had a bad i had a dream 英语翻译You had me laughing at some of what you said in that lesson which I find very true!I went a little ahead of myself on the lessons but I had to find out about porn lol.I will definitely do the exercises with my boyfriend the next time I se I am wishing on a star To follow where you are I am wishing on a dream To find what it means And I wish on all the rainbows that I see I wish on all the people who really dream And I am wishing on tomorrow praying never comes I never thought I had se 英语翻译我最近收到一封含病毒的邮件：Bonjour,***Warning!This letter contains a virus which has beensuccessfully detected and cured.***Down the barriers.I'll go alone within the precincts.Rockwith many loose boulders such as we had se 2.“Have you seen the film?” he asked me.→He asked me _______.A.had I seen the film B.have I seen the film C.if I have seen the film D.whether I had se en the film 为什么选D,C为什么不可以 I just had a crazy I had a great time I had a very great I also had a cold I Had a Dream 歌词 I,just had a supporting i had a falling out Se A Vida